X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_connect.c;h=fb79c80ad5d7296d900878a6e81406c80aa77a35;hb=f05cd5b77ca7b17440bfc7ed9f48f7c11d269767;hp=f066c52661d25a585585d60fa5496aad08cc2cf9;hpb=1981c415d9d5fb935d7f06f2aa1f9c5e30385f48;p=awesomized%2Flibmemcached diff --git a/libmemcached/memcached_connect.c b/libmemcached/memcached_connect.c index f066c526..fb79c80a 100644 --- a/libmemcached/memcached_connect.c +++ b/libmemcached/memcached_connect.c @@ -121,7 +121,7 @@ static memcached_return set_socket_options(memcached_server_st *ptr) } /* For the moment, not getting a nonblocking mode will not be fatal */ - if (ptr->root->flags & MEM_NO_BLOCK) + if ((ptr->root->flags & MEM_NO_BLOCK) || ptr->root->connect_timeout) { int flags; @@ -159,7 +159,8 @@ test_connect: (struct sockaddr *)&servAddr, sizeof(servAddr)) < 0) { - switch (errno) { + switch (errno) + { case EINPROGRESS: case EALREADY: case EINTR: @@ -184,16 +185,7 @@ static memcached_return network_connect(memcached_server_st *ptr) { struct addrinfo *use; - if (ptr->root->server_failure_limit != 0) - { - if (ptr->server_failure_counter >= ptr->root->server_failure_limit) - { - memcached_server_remove(ptr); - return MEMCACHED_FAILURE; - } - } - - if (ptr->sockaddr_inited || + if (!ptr->sockaddr_inited || (!(ptr->root->flags & MEM_USE_CACHE_LOOKUPS))) { memcached_return rc; @@ -209,7 +201,8 @@ static memcached_return network_connect(memcached_server_st *ptr) while (use != NULL) { /* Memcache server does not support IPV6 in udp mode, so skip if not ipv4 */ - if (ptr->type == MEMCACHED_CONNECTION_UDP && use->ai_family != AF_INET) { + if (ptr->type == MEMCACHED_CONNECTION_UDP && use->ai_family != AF_INET) + { use= use->ai_next; continue; } @@ -251,7 +244,7 @@ static memcached_return network_connect(memcached_server_st *ptr) int err; int len = sizeof (err); (void)getsockopt(ptr->fd, SOL_SOCKET, SO_ERROR, &err, &len); - ptr->cached_errno= errno; + ptr->cached_errno= (err == 0) ? errno : err; } (void)close(ptr->fd); @@ -273,7 +266,7 @@ static memcached_return network_connect(memcached_server_st *ptr) if (ptr->fd != -1) { /* restore flags */ - if (ptr->root->connect_timeout && (flags & O_NONBLOCK) == 0) + if (ptr->root->connect_timeout && (ptr->root->flags & MEM_NO_BLOCK) == 0) (void)fcntl(ptr->fd, F_SETFL, flags & ~O_NONBLOCK); WATCHPOINT_ASSERT(ptr->cursor_active == 0); @@ -295,6 +288,8 @@ static memcached_return network_connect(memcached_server_st *ptr) ptr->next_retry= next_time.tv_sec + ptr->root->retry_timeout; } ptr->server_failure_counter+= 1; + if (ptr->cached_errno == 0) + return MEMCACHED_TIMEOUT; return MEMCACHED_ERRNO; /* The last error should be from connect() */ } @@ -308,14 +303,29 @@ memcached_return memcached_connect(memcached_server_st *ptr) memcached_return rc= MEMCACHED_NO_SERVERS; LIBMEMCACHED_MEMCACHED_CONNECT_START(); - if (ptr->root->retry_timeout) + /* both retry_timeout and server_failure_limit must be set in order to delay retrying a server on error. */ + if (ptr->root->retry_timeout && ptr->root->server_failure_limit) { struct timeval next_time; gettimeofday(&next_time, NULL); + + /* if we've had too many consecutive errors on this server, mark it dead. */ + if (ptr->server_failure_counter > ptr->root->server_failure_limit) + { + ptr->next_retry= next_time.tv_sec + ptr->root->retry_timeout; + ptr->server_failure_counter= 0; + } + if (next_time.tv_sec < ptr->next_retry) - return MEMCACHED_TIMEOUT; + { + if (memcached_behavior_get(ptr->root, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS)) + run_distribution(ptr->root); + + return MEMCACHED_SERVER_MARKED_DEAD; + } } + /* We need to clean up the multi startup piece */ switch (ptr->type) {